blah

var httpWebRequest = (HttpWebRequest)WebRequest.Create("");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
    {
     string json = "{\"value1\":\""+twt+" \"}";

     streamWriter.Write(json);
     streamWriter.Flush();
                        streamWriter.Close();
                    }

                    var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                    using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                    {
                        var result = streamReader.ReadToEnd();
                    }